Too Twisty

Geometry Level 3

The number 2 29 2^{29} consists of all of the digits 0 to 9, except for one. Suppose the number / digit is n n , calculate sin ⁡ \sin 45 n ∘ 45n^{\circ} - cot ⁡ \cot 31 5 ∘ 315^{\circ} .


The answer is 1.

Bryan Mw by Bryan MW , 17, Malaysia

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